EP3544976B1 - N-[5-(aminosulfonyl)-4-methyl-1,3-thiazol-2-yl]-n-methyl-2-[4-(2-pyridinyl)-phenyl]-acetamide free base hemihydrate, methods of manufacture and uses thereof - Google Patents

N-[5-(aminosulfonyl)-4-methyl-1,3-thiazol-2-yl]-n-methyl-2-[4-(2-pyridinyl)-phenyl]-acetamide free base hemihydrate, methods of manufacture and uses thereof Download PDF

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EP3544976B1
EP3544976B1 EP17811883.2A EP17811883A EP3544976B1 EP 3544976 B1 EP3544976 B1 EP 3544976B1 EP 17811883 A EP17811883 A EP 17811883A EP 3544976 B1 EP3544976 B1 EP 3544976B1
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Prior art keywords
methyl
phenyl
thiazol
pyridinyl
free base
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German (de)
English (en)
French (fr)
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EP3544976A1 (en
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Yogeshwar BACHHAV
Wilfried Schwab
Alexander Birkmann
Kurt Voegtli
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Aicuris GmbH and Co KG
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Aicuris GmbH and Co KG
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Priority to EP22211343.3A priority Critical patent/EP4201934A1/en
Priority to EP21157420.7A priority patent/EP3848369B1/en
Priority to PL17811883T priority patent/PL3544976T3/pl
Priority to DK21157420.7T priority patent/DK3848369T3/da
Priority to RS20210576A priority patent/RS61905B1/sr
Application filed by Aicuris GmbH and Co KG filed Critical Aicuris GmbH and Co KG
Priority to SI201730749T priority patent/SI3544976T1/sl
Publication of EP3544976A1 publication Critical patent/EP3544976A1/en
Publication of EP3544976B1 publication Critical patent/EP3544976B1/en
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Priority to HRP20210720TT priority patent/HRP20210720T1/hr
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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D417/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00
    • C07D417/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings
    • C07D417/12—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings linked by a chain containing hetero atoms as chain links
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/0012—Galenical forms characterised by the site of application
    • A61K9/0048—Eye, e.g. artificial tears
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/33—Heterocyclic compounds
    • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
    • A61K31/44—Non condensed pyridines; Hydrogenated derivatives thereof
    • A61K31/4427—Non condensed pyridines; Hydrogenated derivatives thereof containing further heterocyclic ring systems
    • A61K31/4439—Non condensed pyridines; Hydrogenated derivatives thereof containing further heterocyclic ring systems containing a five-membered ring with nitrogen as a ring hetero atom, e.g. omeprazole
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
    • A61K47/06—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite
    • A61K47/08—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite containing oxygen, e.g. ethers, acetals, ketones, quinones, aldehydes, peroxides
    • A61K47/10—Alcohols; Phenols; Salts thereof, e.g. glycerol; Polyethylene glycols [PEG]; Poloxamers; PEG/POE alkyl ethers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
    • A61K47/30—Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
    • A61K47/36—Polysaccharides; Derivatives thereof, e.g. gums, starch, alginate, dextrin, hyaluronic acid, chitosan, inulin, agar or pectin
    • A61K47/38—Cellulose; Derivatives thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P15/00—Drugs for genital or sexual disorders; Contraceptives
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P27/00—Drugs for disorders of the senses
    • A61P27/02—Ophthalmic agents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
    • A61P31/12—Antivirals
    • A61P31/20—Antivirals for DNA viruses
    • A61P31/22—Antivirals for DNA viruses for herpes viruses

Definitions

  • the present invention relates to the field of anti-viral active agents, particularly the free base hemihydrate form of N-[5-(aminosulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)-phenyl]-acetamide (in the following also referred to as "Pritelivir” and/or "free base hemihydrate”) as well as methods for the manufacture thereof.
  • the present invention relates also to the use of the above compound in the treatment of human herpes virus infections and in the preparation of pharmaceuticals comprising said compound.
  • N-[5-(aminosulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)-phenyl]-acetamide is a known anti-viral compound used in the treatment of herpes simplex viruses (Herpes Simplex Virus 1 and 2, respectively) as disclosed in WO2006103011A1 .
  • HSV-1 and/or 2 infections are the cause of diseases such as labial herpes (cold sores mainly due to infections with HSV-1), genital herpes (mainly due to HSV-2 infections), but may rarely also cause severe diseases, such as keratitis and encephalitis.
  • the viruses are ubiquitously distributed throughout the world.
  • a well-known drug used in the treatment of herpes simplex infections is acyclovir (2-Amino-1,9-dihydro-9-((2-hydroxyethoxy)methyl)-6H-purin-6-one), which is a specific inhibitor of the viral DNA polymerase.
  • Antiviral drugs against herpes viruses can be administered to a patient in multiple ways, e.g., systemically, topically, and parenterally. As with all drugs, the stability upon storage and when used on or in the patients is of utmost importance. While the stability of the N-[5-(aminosulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)-phenyl]-acetamide is already good, it is an object to provide even more stable, for example, more storage stable and photostable compounds that provide for pharmaceutical compositions having a very high degree of purity.
  • compositions that are formulated to comprise the N-[5-(aminosulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)-phenyl]-acetamide free base hemihydrate have a substantially reduced amount of decomposition/degradation products.
  • the active ingredient is present at higher purity (i.e. lower amount of degradation products) or the dose of active compound per volume unit is higher.
  • This characteristic permits reducing the initial amount of active N-[5-(aminosulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)-phenyl]-acetamide upon formulation of pharmaceutical compositions, because the effective concentration per volume unit of a given pharmaceutical is achieved at respective lower amount and can be maintained for a longer period of time compared with formulations that are not based on the hemihydrate form of N-[5-(aminosulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)-phenyl]-acetamide.
  • the herein described inventive manufacturing process of the N-[5-(aminosulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)-phenyl]-acetamide free base hemihydrate ensures that impurities arising from the production process, e.g. from solvents, or degradation products of either the active compound or other compounds used in the manufacturing process are essentially absent or not detectable by analytical methods.
  • mesylate salts of active compounds are an example of an essentially stable form, but they contain potentially harmful impurities arising in conventionally produced compounds bearing, e.g., the potential risk of genotoxic impurities or degradants formed during the manufacturing process or formed during storage.
  • the present invention provides unexpectedly stable forms of N-[5-(aminosulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)-phenyl]-acetamide in form of the free base hemihydrate that per se have a high degree of purity after manufacturing and due to the stability can be stored for prolonged periods of time.
  • the active ingredient N-[5-(aminosulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)-phenyl]-acetamide is present at high concentrations essentially without or extremely low decomposition which ensures that the therapeutically effective concentration per volume unit of a pharmaceutical remains high without any significant decreasing of active substance content due to degradation processes.
  • the terms “about” and “approximately” denote an interval of accuracy that a person skilled in the art will understand to still ensure the technical effect of the feature in question.
  • the term typically indicates a deviation from the indicated numerical value of ⁇ 20 %, preferably ⁇ 15 %, more preferably ⁇ 10 %, and even more preferably ⁇ 5 %.
  • first”, “second”, “third” or “(a)”, “(b)”, “(c)”, “(d)” etc. relate to steps of a method or use there is no time or time interval coherence between the steps, i.e. the steps may be carried out simultaneously or there may be time intervals of seconds, minutes, hours, days, weeks, months or even years between such steps, unless otherwise indicated in the application as set forth herein above or below.
  • the term "antiviral effective amount” means the total amount of each active component that is sufficient to show a meaningful patient benefit, i.e., healing of acute conditions characterized by inhibition of the herpes virus infection.
  • a meaningful patient benefit i.e., healing of acute conditions characterized by inhibition of the herpes virus infection.
  • the term refers to that ingredient alone.
  • the term refers to combined amounts of the active ingredients that result in the therapeutic effect, whether administered in combination, serially or simultaneously.
  • treat, treating, treatment means preventing or ameliorating diseases associated with herpes virus infection.
  • prophylaxis or prevention refers to the administration or use of the herein disclosed compounds or compositions in order to protect a non-infected organism or a non-infected cell of an organism from being infected, i.e., an organism may be infected by a virus, but the spread of the virus in the organism (from cell to cell) or within the organisms' social environment is prevented.
  • the organism may be human or other mammal.
  • the organism to whom the compound or pharmaceutical composition is administered is a human being that is infected by a herpes virus, e.g., HSV-1 and/or HSV-2, or a human being that is in danger of being infected by such viruses.
  • a herpes virus e.g., HSV-1 and/or HSV-2
  • the present application relates to N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate having the molecular formula C 18 H 18 N 4 O 3 S 2 x 0.5 H 2 O.
  • An Ortep Plot of the compound is shown in Fig. 8A and B .
  • the free base hemihydrate comprises two molecules of Formula (I):
  • the terms "storage stable” or “photostable” and corresponding terms indicate that the hemihydrate does not decompose or degrade for prolonged periods of time. This means that the N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate concentration remains constantly very high as can be measured using a standard measuring method permitting the identification of said compound and/or decomposition products thereof, e.g.
  • the number of herpes viruses in the treated area decreases. This reduces also the number of viruses, particularly herpes simplex viruses, in the affected area that may infect nerve cells in which these viruses may persist in a latent state, only to be reactivated by a physico-chemical stimulus, for example, changes in the cells due to psychological stress, UV-stress, or any other factor shifting the balance in the affected cell from herpes virus latency (and expression of respective virally encoded polypeptides and/or polynucleotides) to herpes virus reactivation.
  • a physico-chemical stimulus for example, changes in the cells due to psychological stress, UV-stress, or any other factor shifting the balance in the affected cell from herpes virus latency (and expression of respective virally encoded polypeptides and/or polynucleotides) to herpes virus reactivation.
  • Reactivation causes the herpes virus to exit the state of latency and leave the cells forming the latency reservoir only to infect and productively proliferate in cells that are later destroyed, either by the viruses themselves or by host defence mechanisms, e.g. by the immune cells.
  • a further embodiment of the present invention is a method of treatment or suppression of the incidence of a herpes simplex virus subtype 1 or 2 infection, or suppression of transmission of a herpes simplex virus subtype 1 or 2 infection, comprising administering to a subject in need thereof an effective amount of a composition of crystalline N-[5-(aminosulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)-phenyl]acetamide free base hemihydrate.
  • prophylaxis and/or prevention or similar term(s) in the art pertinent to the instant invention clearly mean to one of ordinary skill in the art the suppression or reduction of the recurrence of infection or the suppression or reduction of transmission of infection with herpes simplex virus subtype 1 or 2.
  • the term(s) "prophylaxis and/or prevention” does not mean with, even under the broadest reasonable interpretation, the complete and total absence of any infectious virus particles or infected cells from a patient. With the background of the instant invention, such a position is reasonable in the art pertinent to the disclosed subject matter. In support of these definitions of the term(s) "prophylaxis and/or prevention” the following publications are cited:
  • Karim 2015, teaches at the bottom of page 530 that based on the study therein, it was shown that pericoital application of tenofovir gel reduced HSV-2 acquisition in women, i.e., prevented getting HSV. The effectiveness was a reduction of 51%. See page 534, second column. In an earlier study by the same group dating back to 2010 (see citation 6 in this reference), it was shown that pericoital application of a topical vaginal-gel formulation of tenofovir reduced HIV acquisition. While HIV is a different virus, it is not overwhelming by those of ordinary skill in the art in view of the above that a drug is able to prevent the acquisition of a viral infection. Moreover, such is explicitly confirmed to occur by Karim in the case of HSV.
  • N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide as helicase-primase inhibitor is known to have an even higher antiviral efficacy than Tenofovir in case of HIV, and thus, for the skilled person, N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide also would be expected to have a more pronounced prophylactic efficacy.
  • the present application relates to a of N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate as defined in the preceding embodiment having a relative molecular mass of M r 411.50.
  • the present application relates to a N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate as defined in the preceding embodiments having XRPD peaks at 5.940, 11.880 and 17.840 2theta.
  • XRPD XRPD peaks at 5.940, 11.880 and 17.840 2theta.
  • the present application relates to N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate as defined in the preceding embodiments, which has a melting point of about 204°C to 212°C, in particular 205°C to 211°C, particularly 206°C to 210°C, particularly 207°C to 209°C, e.g. around 208.2°C.
  • the person skilled in the art knows that the determination of the melting point may be dependent on various other environmental parameters, such as humidity, etc.
  • the present application relates to N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate as defined in the preceding embodiments having a calculated pKa value of 4.53.
  • the present application relates to N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate as defined in any one of the preceding embodiments having an octanol/water partition coefficient of 0.911 ⁇ 0.891 at 25°C.
  • the present application relates to N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate, having a stability at a pH in the range of 4.5 to 7.0 of 90 to 100%.
  • the present application relates to a pharmaceutical composition
  • a pharmaceutical composition comprising or that is formulated to initially comprise N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate as defined in any one of the preceding embodiments, wherein said composition further comprises at least one pharmaceutically acceptable excipient.
  • the present application relates to a pharmaceutical composition obtainable by formulating N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate as defined in any one of the preceding embodiments with at least one pharmaceutically acceptable excipient.
  • the pharmaceutical composition obtainable according to the preceding embodiment may further comprise other active compounds, for example, active compounds selected from the group comprising anti-inflammatory agents, anti-viral agents, centrally and peripherally acting analgesics, (local) anesthetics, etc.
  • anti-inflammatory agent refers generally to any compound or combination of compounds that, upon administration to an individual which experiencing inflammation, tends to reduce such inflammation, e.g. steroids, and non-steroidal anti-inflammatory drugs (NSAIDs) as defined also in the section supra.
  • centrally and peripherally acting analgesics comprise opioid analgesics
  • opioid analgesics comprise, e.g. buprenorphine or a physiologically acceptable salt or ester thereof
  • suitable opioid analgesics include alfentanil, allylprodine, alphaprodine, anileridine, benzylmorphine, bezitramide, butorphanol, clonitazene, cyclazocine, desomorphine, dextromoramide, dezocine, diampromide, diamorphone, dihydrocodeine, dihydromorphine, dimenoxadol, dimepheptanol, dimethylthiambutene, dioxaphetylbutyrate, dipipanone, eptazocine, ethoheptazine, ethylmethylthiambutene, ethylmorphine, etonitazene, fentanyl, heroin
  • non-opioid analgesic comprise, e.g. NSAID, a tricylic antidepressant (e.g. amitryptyline), an anticonvulsant (e.g. gabapentin) or an antimigraine compound (e.g. sumatriptan or naratriptan).
  • NSAID may be a cyclooxygenase (COX) COX-1 or COX-2 inhibitor.
  • NSAIDs include ibuprofen, flurbiprofen, diclofenac, indomethacin, piroxicam, ketoprofen, etodolac, diflusinal, meloxicam, accclofenac, fenoprofen, naproxen, tiaprofenic acid, tolmetin, celecoxib and rofecoxib, and their physiologically acceptable salts and esters.
  • Suitable salts are alkali addition salts such as the potassium or sodium salt.
  • compositions of the invention long and short acting local and volatile anesthetics may be used that are selected from the group comprising Bupivacaine, Lidocaine, xyclocaine, tetrodotoxin (TTX), Saxitoxin (STX), etc.
  • a pharmaceutical composition obtainable by formulating the N-[5-(aminosulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate comprises a local anaesthetic.
  • a pharmaceutical composition obtainable by formulating N-[5-(aminosulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate comprises a local anaesthetic, wherein the local anaestetic is lidocaine.
  • the present application relates to the pharmaceutical composition as defined in any one of the preceding embodiments, further comprising or that is formulated to initially comprise an active selected from the group comprising selected from the group comprising anti-inflammatory agents, anti-viral agents, centrally and peripherally acting analgesics, (local) anaesthetics.
  • the present application relates to the pharmaceutical composition as defined in any one of the preceding embodiments, further comprising a sun-blockiong or UV blocking agent.
  • the sun-blocking or UV-blocking agent is Octisalate.
  • the sun-blocking or UV-blocking agent is titanium dioxide.
  • the sun-blocking or UV-blocking agent is zinc oxide.
  • the sun-blocking or UV-blocking agent is PABA.
  • the sun-blocking or UV-blocking agent is homosalate.
  • the sun-blocking or UV-blocking agent is trolamine salicylate.
  • the sun-blocking or UV-blocking agent is dioxybenzone.
  • the sun-blocking or UV-blocking agent is sulisobenzone. In one embodiment the sun-blocking or UV-blocking agent is oxybenzone. In one embodiment the sun-blocking or UV-blocking agent is avobenzone. In one embodiment the sun-blocking or UV-blocking agent is ecasmule. In one embodiment the sun-blocking or UV-blocking agent is meradimate. In one embodiment the sun-blocking or UV-blocking agent is cinoxate. In one embodiment the sun-blocking or UV-blocking agent is octocrylene.
  • the present application relates to a pharmaceutical composition as defined in any one of the preceding embodiments, wherein said composition is selected from the group comprising topical formulations for patch administration, creams, ointments, salves, gels, skin lotions, wax formulations, lipsticks, tonics, and/or mousses, sprays, topical oils, solutions, films, etc.
  • the present application relates to the pharmaceutical composition as defined in any one of the preceding embodiments, wherein N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate has a photostability in terms of mean percentage recovery of about 102 to 105% (103.61 to 105.11) as measured according to ICH guideline Q1B.
  • the present application relates to the pharmaceutical composition as defined in any one of the preceding embodiments, wherein the N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate has a photostability in terms of a mean purity of about 100% area/area as measured according to ICH guideline Q1B.
  • the present application relates to the pharmaceutical composition as defined in any one of the preceding embodiments, wherein the N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate is initially formulated to be contained at an amount of about 0.1 to about 10 % w/w.
  • the amount of the free base in the pharmaceuticals may be determined using the above described methods, e.g., HPLC, NMR spectroscopy, XRPD methods, etc.
  • the present application relates to the pharmaceutical composition as defined in any one of the preceding embodiments, wherein the N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate is initially formulated to be contained at an amount of about 1.0 to about 7.5 % w/w.
  • the present application relates to the pharmaceutical composition as defined in any one of the preceding embodiments, wherein the N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate is initially formulated to be contained at an amount of about 2.5 to about 6.0% w/w.
  • the present application relates to the pharmaceutical composition or topical pharmaceutical composition as defined in any one of the preceding embodiments, wherein N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate is initially formulated to be contained at an amount of about 5.0% w/w.
  • the present application relates to the pharmaceutical composition as defined in any one of the preceding embodiments, wherein N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate is initially formulated to be contained at an amount of 5.0% w/w, wherein the pharmaceutical composition is an ointment.
  • the present application relates to the pharmaceutical composition as defined in any one of the preceding embodiments, wherein the N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate is initially formulated to be contained at an amount of about 1.0 to about 7.5 % w/w, particularly about 5.0% w/w, wherein the pharmaceutical composition is an ointment, and wherein the ointment is administered 1 to 10 times a day, or 2 to 10 times a day, or 3 to 8 times a day, or 3 to 7 times a day, or 4 to 6 times a day, or 5 times a day. It is clear that each of the concentrations may be administered in accordance with any of the above-mentioned frequencies. Each combination represents one embodiment of the invention as would be understood by a person skilled in the art.
  • the present application relates to the pharmaceutical composition as defined in any one of the preceding embodiments, wherein the N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate is present in an amount of 1.0 to 7.5 % w/w, particularly 5.0% w/w upon formulation, wherein the pharmaceutical composition is an ointment, and wherein the ointment is administered 1 to 10 times a day, or 2 to 10 times a day, or 3 to 8 times a day, or 3 to 7 times a day, or 4 to 6 times a day, or 5 times a day, and wherein the ointment is administered over a period of 2 to 14 day, 3 to 10 days, 3 to 7 days, 4 to 5 days, or over 5 days, or over 4 days.
  • each of the concentrations may be administered in accordance with any of the above-mentioned frequencies and each of the respective time periods. Therefore, each possible combination out of the lists of concentrations/amounts, administration frequencies and time periods represents a respective embodiment of the invention as would be understood by a person skilled in the art.
  • the present application relates to the pharmaceutical composition as defined in any one of the preceding embodiments, wherein N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate is present in an amount of 5.0% w/w, wherein the pharmaceutical composition is an ointment, and wherein the ointment is administered 5 times a day, and wherein the ointment is administered over a period of 4 days.
  • the present application relates to the pharmaceutical composition as defined in any one of the preceding embodiments, wherein N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate is present in an amount of 5.0% w/w, wherein the pharmaceutical composition is a gel, and wherein the gel is administered 5 times a day, and wherein the ointment is administered over a period of 4 days.
  • the present application relates to the pharmaceutical composition as defined in any one of the preceding embodiments, wherein N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate is present in an amount of 5.0% w/w, wherein the pharmaceutical composition is an cream, and wherein the cream is administered 5 times a day, and wherein the ointment is administered over a period of 4 days.
  • the present application relates to the pharmaceutical composition as defined in any one of the preceding embodiments, wherein N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate is present in an amount sufficient to reach a concentration of >10 nM in the epidermis or dermis of an individual subjected to a treatment with said composition.
  • the present application relates to a N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate as defined in the preceding embodiments for use as medicament.
  • the present application relates to N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate for use in the treatment and/or prevention of herpes virus infections.
  • the present application relates to N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate for use in the treatment and/or prevention of herpes virus infections, wherein said herpes viruses are selected from the order of simplex viruses.
  • the present application relates to N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate for use in the treatment and/or prevention of herpes virus infections as defined in the preceding embodiments, wherein said simplex virus is selected from Herpes Simplex Virus 1 (HSV-1) and Herpes Simplex Virus 2 (HSV-2).
  • HSV-1 Herpes Simplex Virus 1
  • HSV-2 Herpes Simplex Virus 2
  • the present application relates to N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate for use in a oral pharmaceutical formulation in the treatment and/or prevention of a herpes virus infection, particularly of herpes simplex infections, in a subject in need thereof.
  • the present application relates to N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate for use in a topical pharmaceutical formulation in the treatment and/or prevention of a herpes virus infection, particularly of herpes simplex infections, in a subject in need thereof.
  • the present application relates to N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate for use in topical administration to a subject in need thereof, wherein said topical administration is for application to skin and mucosal surfaces, e.g. skin application in general, more specific facial application, application to the mouth, the genitals, and/or the eyes.
  • skin and mucosal surfaces e.g. skin application in general, more specific facial application, application to the mouth, the genitals, and/or the eyes.
  • the present application relates to N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate for use in systemic administration to a subject in need thereof.
  • the present application relates to N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate for use in the treatment of recurrent herpes labialis.
  • the present application relates to N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate for use in the treatment of recurrent herpes labialis selected from the group of patients showing signs of the prodromal stage of herpes labialis, patients having erythema, patients showing labial papules, patients having labial vesicles, patients with labial ulcers and/or soft crusts, patients having labial hard crusts, patients having residual labial erythema.
  • the present application relates to N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate for use in the treatment of herpes genitalis.
  • the present application relates to N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate for use in the treatment of herpes keratitis.
  • the present application relates to N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate for use in the treatment of herpes meningitis and/or encephalitis.
  • the present application relates to N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate for use in the treatment of herpes infections in the newborn.
  • the present application relates to N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate for use in the treatment of herpes infections in the immunocompetent and/or immunocompromised individuals.
  • the present application relates to N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate for use in the treatment of herpes infections in immunocompromised individuals, wherein the immunocompromised individuals are selected from the group comprising recipients of an organ transplant, individuals having an infection by another virus or bacterium, particularly an infection with HIV and/or another herpes virus, and individuals infected with a herpes simplex virus that is resistant to at least one anti-viral active.
  • the present application relates to a method of treatment and/or prophylaxis of a herpes virus infection comprising administering a N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate to a subject in need thereof.
  • the present application relates to a method of manufacturing N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate as defined in any of the preceding embodiments, wherein said method comprises the following steps:
  • the present application relates to a pharmaceutical composition
  • a pharmaceutical composition comprising N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl] -N-methyl-2- [4-(2-pyridinyl)phenyl]acetamide free base hemihydrate obtainable in a method according to the preceding embodiment.
  • the present application relates to a pharmaceutical composition obtainable by formulation of N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate obtainable in a method according to the preceding embodiments with at least one pharmaceutical excipient.
  • the present application relates to the use of N-[5-(amino-sulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)phenyl]acetamide free base hemihydrate obtainable in a method according to the preceding embodiment as medicament.
  • N-[5-(aminosulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)-phenyl]acetamide free base hemihydrate according to the invention is a useful compound for treatment and/or prophylaxis of infectious diseases and/or prevention of transmission of infectious diseases.
  • N-[5-(aminosulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2- [4-(2-pyridinyl)-phenyl]acetamide free base hemihydrate is highly active against herpesviruses and infections caused by herpesviruses and/or transmission of a herpes virus or herpes viruses.
  • N-[5-(aminosulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)-phenyl]acetamide free base hemihydrate is especially useful for the preparation of a pharmaceutical composition for the treatment and/or prophylaxis of diseases, which are caused by herpesviruses or caused by the transmission of a herpes virus or herpes viruses.
  • N-[5-(aminosulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)-phenyl]acetamide free base hemihydrate is especially useful for the treatment and/or prophylaxis of infections, which are caused by herpes simplex viruses, or for the prevention of transmission of a herpes virus or herpes viruses.
  • HSV herpes simplex viruses
  • HSV herpes simplex virus
  • herpes simplex viruses Other disorders such as herpetic whitlow, herpes gladiatorum, ocular herpes (keratitis), cerebral herpes infection encephalitis, Mollaret's meningitis, neonatal herpes, and possibly Bell's palsy are also caused by herpes simplex viruses.
  • N-[5-(aminosulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)-phenyl]acetamide free base hemihydrate is thus useful for the treatment and/or prophylaxis of infections which are caused by herpes simplex viruses and/or for the prevention of transmission of herpes simplex viruses.
  • N-[5-(aminosulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)-phenyl]acetamide free base hemihydrate of the present invention can be combined and administered together with other actives, e.g., anti-inflammatory agents such as acetylsalicylic acid and acetaminophen, or with (local) anaesthetics, other antiviral agents, etc.
  • actives e.g., anti-inflammatory agents such as acetylsalicylic acid and acetaminophen, or with (local) anaesthetics, other antiviral agents, etc.
  • inventive N-[5-(aminosulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)-phcnyl]acctamidc free base hemihydrate can be combined and can be used in combination with an anti-viral agent.
  • an anti-inflammatory, immunomodulatory, or anti-viral agent such as therapeutic vaccines, siRNAs, antisense oligonucleotides, nanoparticles or virus-uptake inhibitors such as n-docosanol
  • compositions of the present invention can be prepared in a conventional solid and a conventional pharmaceutically-made adjuvant at suitable dosage level in a known way. Preferred preparations may be adapted for oral application. These administration forms include, for example, pills, tablets, film tablets, coated tablets, sustained release formulations, and capsules.
  • compositions according to the invention may comprise 1 to 70% by weight more preferably 1 to 30%, e.g. 1 to 10% by weight of N-[5-(aminosulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)-phenyl]acetamide free base hemihydrate (all percentage data are percentages by weight based on the weight of the pharmaceutical preparation).
  • a pharmaceutical composition according to the invention may be suitably formulated for systemic, oral, topic or parenteral administration.
  • excipient and/or diluents can be used carriers such as preferably an inert carrier like lactose, starch, sucrose, cellulose, magnesium stearate, dicalcium phosphate, calcium sulfate, talc, mannitol, ethyl alcohol (liquid filled capsules); suitable binders include starch, gelatin, natural sugars, corn sweeteners, natural and synthetic gums such as acacia, sodium alginate, carboxymethylcellulose, polyethylene glycol and waxes, sugars such as sucrose, starches derived from wheat corn rice and potato, natural gums such as acacia, gelatin and tragacanth, derivatives of seaweed such as alginic acid, sodium alginate and ammonium calcium alginate, cellulose materials such as methylcellulose, sodium carboxymethylcellulose and hydroxypropylmethylcellulose, polyvinylpyrrolidone, and inorganic compounds such as magnesium aluminum silicate; lubricants such as boric
  • the compound and composition of the present invention can also be administered using patches that are applied on parts of the body of an organism, e.g. of a human being, that is infected by a herpes virus, e.g. HSV-1 and/or HSV-2. More particularly, such patches invention comprise a skin adhesive layer, a backing layer and a release liner, the adhesive layer comprising the hemihydrate of the invention and/or other active compounds dissolved in a low volatile solvent and a polymeric adhesive soluble in highly volatile solvents.
  • the antiviral agent may be incorporated in the adhesive layer in an therapeutically and/or prophylactically effective amount, e.g., from 0.1 to 10% by weight of the dried adhesive layer, dissolved in a low volatile solvent.
  • Solvents can be classified in function of their physical-chemical properties. Key properties, among the others, include density, viscosity, dielectric constant, dipole moment, melting and boiling point. Solvents can be broadly classified as low, middle or highly boiling according to boiling temperature at 1 bar: Low Boiling: Boiling ranges below 100°C; Medium Boiling: Boiling ranges between 100°C and 150°C; High Boiling: Boiling ranges above 150°C.
  • a low boiling solvent is a highly volatile solvent whereas a high boiling solvent is a solvent with a poor inclination to evaporate so that it can be defined as a low volatile solvent.
  • An example of a low volatile solvent according to the invention is dimethylsulfoxide that may be present in an amount from 10 to 50% by weight of the dried adhesive layer.
  • the adhesive polymer is selected from pectin, agar gum, acacia gum, xanthan gum, polyvinyl alcohol, polymethacrylic acid, polymethacrylate, acrylates/alkylmethacrylates copolymers, any acrylic ester copolymer, aminoalkyl methacrylate copolymer, polyvinyl pyrrolidone, cellulose or cellulose derivatives, such as hydroxypropylcellulose, hydroxyethylcellulose, or blends thereof.
  • the adhesive layer may be formed from a solution of the adhesive polymer in a highly volatile solvent, i.e.
  • the adhesive polymer or the adhesive polymer blend may be present in an amount from 20 to 50% by weight of the dried adhesive layer.
  • the patch may further contain citric acid, succinic acid, lactic acid and esters thereof as a non polymeric crystallization inhibitors, in an amount from, e.g., 0.5 to 15% by the weight of the dried adhesive layer.
  • the patch may also contain other excipients such as cross-linkers, penetration enhancers, plasticizers, preservatives, antioxidants, fragrances, emollients.
  • the backing layer may be transparent, semi-occlusive or occlusive, oxygen permeable, e.g., consisting of polyurethane ether or ester film, polyethylene, ethylene vinyl acetate or polyolephine film with a MVTR (moisture vapor transmission rate) from 50 to 3500 g/m2/day and a thickness from 20 to 150 ⁇ m.
  • the backing layer should be very flexible and soft, transparent or colored and can be occlusive or perspirating, providing a masking effect of the cold sore. Moreover, it protects the damaged skin and the viral lesions from the external contact, thus reducing the patient's pain and the possibility of further contaminations or infections, and improving the re-epithelization process.
  • the adhesive layer is protected from the external environment through a release liner, that has to be removed before applying the patch to the site of the body interested by the viral lesions.
  • a release liner that has to be removed before applying the patch to the site of the body interested by the viral lesions.
  • the patch can be kept on-site up 6 to 24 hours, delivering the active ingredient into and across the skin.
  • Patches are prepared by a process comprising the steps of blending the solution of adhesive polymers in highly volatile solvents together with the other components and then casting the mixture on a silicone coated liner film, before drying and the final lamination. Highly volatile solvents evaporate, leaving the adhesive film on the release liner whereas the low volatile solvent remains in the adhesive layer preventing the drug crystallization.
  • the polymers used according to this invention are those normally used to produce pressure sensitive adhesives (PSAs) or bio-adhesive film in an organic or aqueous solution, in a concentration ranging from 20% to 80%, preferably from 20 to 50% of the composition of the adhesive mixture, while the concentrations of the highly volatile solvent are from 10% to 50%.
  • Other components of the adhesive layer or of the reservoir layer include thickening agents, chemical permeation enhancers, non-polymeric crystallization inhibitors, flavors, surfactants, cross-linkers, buffering agents, plasticizers, preservatives, antioxidants, pigments.
  • the selected solvents and polymers must of course be compatible and form an homogeneous solution which may be uniformly casted. Low boiling point solvents, i.e.
  • high volatile solvents with boiling point not higher than 100°C are preferably water, ethanol, methanol, isopropyl alcohol, ethyl acetate, more preferably water.
  • the low volatile solvents helps to avoid crystallization by keeping dissolved the active substances in the matrix and affects the diffusivity of the drug through the matrix, to reach the skin and the site of action.
  • the matrix must be chosen according to the physical-chemical properties of the low volatile solvents or the solvents blend.
  • the polymer must provide a good cohesiveness to the final product.
  • the quantitative composition of the adhesive blend is chosen in order to have an acceptable film in terms of thickness, cohesion properties, mechanical resistance, skin adhesion, peel properties and handling.
  • the polymer blend range in the dry matrix is 5%-50%, most preferably 20%-35%, solubilized in a low boiling point solvent or solvent mixture.
  • the solvent percentage ranges from 20% to 70%, preferably from 35% to 55%, in the mixture that has to be casted to produce the adhesive layer or the reservoir layer.
  • the amount of low boiling point solvent must not exceed 15% by weight.
  • the low volatile solvents instead, are included in the dry matrix, entangled in the polymer and dissolving the active ingredients. The amount of these solvents in the dry state is in the range 10%-50%, but preferably in the range 30%-55%.
  • N-[5-(aminosulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)-phenyl]-acetamide free base hemihydrate was identified by extensive polymorph hydrate screening starting from N-[5-(aminosulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)-phenyl]-acetamide on the monohydrate form of the above compound according to Formula (I) in order to identify a suitable or the most stable form of said compound in formula I (the free base of the mesylate of N-[5-(aminosulfonyl)-4-methyl-1,3-thiazol-2-yl]-N-methyl-2-[4-(2-pyridinyl)-phenyl]-acetamide):
  • the slurry experiments were performed by taking approximately 100 mg of monohydratic Form B and slurrying in each of the solvent mixtures as detailed in the table below using a magnetic stir bar. As the focus was set on hydrate forms mostly aqueous solvent mixtures were used as shown in Table 3.
  • the method below is a laboratory method to quickly determine concentration and is different to the method used to track synthesis of C-019998.
  • the screening identified a total of 14 different forms; an additional form was found during scale-up phase. Of most forms identified by XRPD sufficient amounts to perform additional analytics were still available from the screening phase. First microscopy (habit, aspect) and NMR (structure confirmation, residual solvents) were performed and if more material was available also DSC and TGA were performed to get an idea how residual solvents were included and what kind of form conversion would happen. The following tables show a summary of analytical data that was collected after screening phase as well as during scale-up phase.
  • TGA weight loss a temperature range is given.
  • the DSC data shows endothermic and exothermic events as well as melting points; the temperature given represents the peak temperature.
  • the collected data about solvent content together with TGA data was used to exclude a series of forms from further characterisation work as these forms were assumed to be solvates or at least forms that intensively include solvents. The following forms were excluded:
  • Form E cannot be clearly assigned to be a solvate or non-solvated form but is assumed to be a channel solvate. In case form E is assumed to be a non-solvated form that includes the solvents currently present in the crystallization experiment, it has to be seen as quite stable form concurring with form A that is the most stable non-solvate.
  • the hemihydrate form C provides sufficient stability with low risk of dehydration when being stored in a closed container at ambient temperature.
  • the Powder X-Ray Diffraction Patterns of the free base hemihydrate ( Figure 1 ) is that of a highly crystalline solid. Characteristic peaks are labelled. Table 7 below shows the peak list of the PXRD pattern of the free base hemihydrate represented in Figure 1 . The characteristic peaks have been highlighted in bold face.
  • PP-acetic acid and aminothiazole sulfonic acid amide are mixed in THF/NMP, the mixture is cooled and then EDC x HCl is added in portions.
  • the reaction mixture is stirred for several hours, and then added slowly to purified water.
  • the suspension is stirred and filtered; the product cake is washed with purified water and dried at room temperature in a nitrogen stream and then under vacuum.
  • Purified water is added slowly at elevated temperature, the suspension is stirred for several hours.
  • the suspension is cooled to 5°C and stirred further for several hours.
  • the product is isolated by filtration and washed with purified water.
  • the product is dried at 65°C under vacuum until the criterion for water content is reached.
  • Free base hemihydrate exhibited similar or slightly higher solubility of in the principal solvents compared to free base; therefore any physicochcemical data for free base can be extrapolated to free base hemihydrate .
  • Test Item 1 pritelivir free base (BXR2KVE, Test Item 1) pritelivir hemihydrate (M023862-CA15-033, Test Item 2) PEG 400 7.87 (7.83 - 7.91) 3.30 (1.54 - 4.65) 7.87 (7.80 - 7.92) Propylene glycol 2.84 (2.74 - 2.94) 0.20 (0.20 - 0.21) 0.59 (0.58 - 0.60)

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EP17811883.2A 2016-11-28 2017-11-28 N-[5-(aminosulfonyl)-4-methyl-1,3-thiazol-2-yl]-n-methyl-2-[4-(2-pyridinyl)-phenyl]-acetamide free base hemihydrate, methods of manufacture and uses thereof Active EP3544976B1 (en)

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EP21157420.7A EP3848369B1 (en) 2016-11-28 2017-11-28 N-[5-(aminosulfonyl)-4-methyl-1,3-thiazol-2-yl]-n-methyl-2-[4-(2-pyridinyl)-phenyl]-acetamide free base hemihydrate, methods of manufacture and uses thereof
PL17811883T PL3544976T3 (pl) 2016-11-28 2017-11-28 Hemihydrat wolnej zasady n-[5-(aminosulfonylo)-4-metylo-1,3-tiazol-2-ilo]-n-metylo-2-[4-(2-pirydynylo)fenylo]acetamidu, sposoby jego wytwarzania i zastosowania
DK21157420.7T DK3848369T3 (da) 2016-11-28 2017-11-28 N-[5-(aminosulfonyl)-4-methyl-1,3-thiazol-2-yl]-n-methyl-2-[4-(2-pyridinyl)-phenyl]-acetamid-fri base hæmihydrat, fremgangsmåder til fremstilling og anvendelser deraf
RS20210576A RS61905B1 (sr) 2016-11-28 2017-11-28 Hemihidrat slobodne baze n-[5-(aminosulfonil)-4-metil-1,3-tiazol-2-il]-n-metil-2-[4-(2-piridinil)fenil]acetamida, postupci njegove proizvodnje i upotrebe
EP22211343.3A EP4201934A1 (en) 2016-11-28 2017-11-28 N-[5-(aminosulfonyl)-4-methyl-1,3-thiazol-2-yl]-n-methyl-2-[4-(2-pyridinyl)-phenyl]-acetamide free base hemihydrate, methods of manufacture and uses thereof
SI201730749T SI3544976T1 (sl) 2016-11-28 2017-11-28 Hemihidrat proste baze N-(5-(aminosulfonil)-4-metil-1,3-tiazol-2-il)-N-metil-2-(4-(2-(piridi nil)-fenil)-acetamida
HRP20210720TT HRP20210720T1 (hr) 2016-11-28 2021-05-07 Osnovni hemihidrat bez acetamida n-[5-(aminosulfonil)-4-metil-1,3-tiazol-2-il]-n-metil-2-[4-(2-piridinil)-fenil], postupci proizvodnje i njegove uporabe

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EP16200967 2016-11-28
PCT/EP2017/080653 WO2018096170A1 (en) 2016-11-28 2017-11-28 N-[5-(aminosulfonyl)-4-methyl-1,3-thiazol-2-yl]-n-methyl-2-[4-(2-pyridinyl)-phenyl]-acetamide free base hemihydrate, methods of manufacture and uses thereof

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EP21157420.7A Division EP3848369B1 (en) 2016-11-28 2017-11-28 N-[5-(aminosulfonyl)-4-methyl-1,3-thiazol-2-yl]-n-methyl-2-[4-(2-pyridinyl)-phenyl]-acetamide free base hemihydrate, methods of manufacture and uses thereof

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EP21157420.7A Active EP3848369B1 (en) 2016-11-28 2017-11-28 N-[5-(aminosulfonyl)-4-methyl-1,3-thiazol-2-yl]-n-methyl-2-[4-(2-pyridinyl)-phenyl]-acetamide free base hemihydrate, methods of manufacture and uses thereof
EP22211343.3A Withdrawn EP4201934A1 (en) 2016-11-28 2017-11-28 N-[5-(aminosulfonyl)-4-methyl-1,3-thiazol-2-yl]-n-methyl-2-[4-(2-pyridinyl)-phenyl]-acetamide free base hemihydrate, methods of manufacture and uses thereof

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EP22211343.3A Withdrawn EP4201934A1 (en) 2016-11-28 2017-11-28 N-[5-(aminosulfonyl)-4-methyl-1,3-thiazol-2-yl]-n-methyl-2-[4-(2-pyridinyl)-phenyl]-acetamide free base hemihydrate, methods of manufacture and uses thereof

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PT3544976T (pt) * 2016-11-28 2021-05-18 Aicuris Anti Infective Cures Gmbh Hemi-hidrato da base livre de n-[5-(aminossulfonil)-4-metil-1,3-tiazol-2-il]-n-metil-2-[4-(2-piridinil)-fenil]-acetamida, métodos de fabricação e suas utilizações
MA50609B1 (fr) 2017-10-05 2023-03-31 Innovative Molecules Gmbh Énantiomères de thiazoles substitués utilisés comme composés antiviraux
TW202038947A (zh) 2018-11-28 2020-11-01 德商創新分子有限責任公司 在與溶瘤病毒之組合療法中治療癌症的解旋酶引子酶抑制劑
AU2021241823A1 (en) * 2020-03-26 2022-09-15 Aic316 Gmbh Ophthalmic formulation comprising N-(5-(aminosulfonyl)-4-methyl-1,3- thiazol-2-yl)-N-methyl-2-(4-(2-pyridinyl)phenyl)acetamide hemihydrate
EP3925595A1 (en) * 2020-06-17 2021-12-22 AiCuris GmbH & Co. KG Ophthalmic formulation comprising n-[5-(aminosulfonyl)-4-methyl-1,3-thiazol-2-yl]-n-methyl-2-[4-(2-pyridinyl)phenyl] acetamide hemihydrate
WO2024047507A1 (en) 2022-08-29 2024-03-07 Assembly Biosciences, Inc. A novel crystalline form of pritelivir
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